| Nonvilliers-Grandhoux | |
| Commune Status: | Commune |
| Arrondissement: | Nogent-le-Rotrou |
| Canton: | Nogent-le-Rotrou |
| Insee: | 28282 |
| Postal Code: | 28120 |
| Mayor: | Monique Hervet[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.3433°N 1.1733°W |
| Elevation M: | 150 |
| Elevation Min M: | 165 |
| Elevation Max M: | 256 |
| Area Km2: | 21.61 |
Nonvilliers-Grandhoux (in French pronounced as /nɔ̃vilje ɡʁɑ̃du/) is a commune in the Eure-et-Loir department in northern France.